John a



{NoModelJ v J. A. STEWART.

PLOW.

Patented Mar. 5, 1889.

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UNITED STATES PATENT OEricE.

J'OHh A. STEWART, OF HOUSTON, TEXAS, ASSIGNOR TO DEERE, MANSUR A: (30., OF ST. LOUIS, MISSOURI.

PLOW.

SPECIFICATION forming part of Letters Patent No. 399,217, dated March 5, 1889. Application filed April 4, 1887. Serial No. 233,582. (No model.)

To aZZ whom it may concern: l them as the combination oi a depressed center Be it known that I, JOHN A. STEWART, of bar, well as the combination of a depressed 50 Houston, Texas, have made a new and useful and extended center bar with a sweep having Improvement in Ilows, of which the followwidely-extended wings, which is especially ing is a full, clear and exact description, and useful, as thereby the operation of a sweepsubstantially as is hereinafter set forth and I plow is greatly facilitated and a better result claimed, aided by the annexed drawings, obtained than is with a sweep-plow whose making part of this specification, in which 1 center bar is not depressed nor extended. Figure 1 is a side elevation, partly in sec- The bar A is preferably of uniform width tion, of the lower portion of the plow, the sec- L throughout its len g1 h. The portion. a is bevtion being on the line 1 l of Fig. 2). Fig. 2 is elcd on the top, substantially as shown. The a side elevation of the lower part of the plow. 3 lip a at its forward end is as wide, or there- Fig. 3 is abottom view of the plow, the hanabout, as the centerbar, and it widens toward dies and beam not being shown. Fig. 4c is a its rear end, where, in conjunction with the 15 rear elevation of the parts shown in Fig. 2. main portion a of the center bar, it forms a Fig. 5 is a view in perspective of theimproved socket, F, in which is received the point e of plow. Fig. 0 is a longitudinal section, upon the sweep. The upper rear end, c, of the an enlarged scale, of the forward end of the sweep is adapted to be secured to the standcenier bar and sweep; and Fig. 7 is a cross a-rd B, and by these means the sweep is held 20 vertical section on the line 7 7 of Fig. :3. in position. The sweep is preferably made The same letters of reference denote the adjustable, so that it can be inclined more or same parts, less and the earth thereby thrown more or The style of plow-frame shown has a ceu less, as may be desired. To this end, and as ter bar, A, standard B, handles C C, and 1 the most desirable means therefor, the sweep 2 5 beam D, the standard rising from the center is attached to the standard by means of what bar at a point thereon at or toward the foris termed the saddle G. This piece is exwa-rd end of the center bar, the handles being tended at g g and thereby bolted to the sweep, attached to the rear end of the center bar, l and it is also provided with the lug or lugs 51 and the beam being secured to the standard g, which are slotted at 9' and by means of c and also to the handles, subslaniiallyas repthe bolts 9" the saddle is adj ustably secured i'CtSQlllUil, saving as modified. by the improve to the standard and, within a limited degree, went under consideration. higher or lower thereon, as preferred. The

ii represents the sweep. \Vhat is termed socket I and sweep-point e are relatively fita wing sweep is shown, but what is known ted to permit of the described adjustment of as a solid sweep may be used. the sweep upon the standard. The center bar shown has three peenliari- 1 I claim ties. It is made to come below the level of 1. In a plow, a longitudinal center bar exthe lower edge of the sweep E; it extends beending below the base of the sweep and havyond the point e of the sweep, as shown at (i, ng the pointed nose and the fan-shaped lip, 40 and at its forward end it is provided with a substantially as described.

lip, (1', which is integral with the main por- 2. In a plow, the combination of the center tion a of the center bar. In the present apbar, the adjustable sweep, and the saddle, o plication I do not lay claim, broadly, to the substantially as described. two first-named features, as the are set forth g i T 1 v and claimed in a separate appli ation for Leti JOID b i ARL ters Patentof even date herewith, filed by i \Vitnesses:

myself, jointly with other parties; but in com- GEO. XV. SUTHERLAND, bination with a sweep I do desire to claim A. T. STEVENS. 

